mClock profiles

An mClock profile is a configuration setting. When applied to a running IBM Storage Ceph cluster, it enables the throttling of the IOPS operations belonging to different client classes, such as background recovery, scrub, snap trim, client op, and pg deletion.

The mClock profile uses the capacity limits and the mClock profile type selected by the user to determine the low-level mClock resource control configuration parameters and applies them transparently. Other IBM Storage Ceph configuration parameters are also applied. The low-level mClock resource control parameters are the reservation, limit, and weight that provide control of the resource shares. The mClock profiles allocate these parameters differently for each client type.